Emails are blocked with the notification VIRUS (Heuristics.Encrypted.PDF)

Emails are blocked with the notification VIRUS (Heuristics.Encrypted.PDF)

   KB 21868        Last updated on 07/11/2015  

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Emails are blocked with the notification VIRUS (Heuristics.Encrypted.PDF)


This is because encrypted archives are rejected by default. To unblock it via the admin console, go to: Configure > Global Settings > AS/AV > Antivirus Settings and un-check 'Block encrypted archives.'

Go to Configure:


Then select Global Settings:


Select now on AS/AV:


Uncheck the Antivirus Settings and un-check 'Block encrypted archives' option:


Then restart the Antivirus service:

zmclamdctl restart

Additional Content

  • Not related content.

Verified Against: Zimbra Collaboration 8.6, 8.5, 8.0 Date Created: 04/10/2015
Article ID: Date Modified: 07/11/2015

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Wiki/KB reviewed by SME1 SME2 Copyeditor Last edit by Jorge de la Cruz Mingo
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